107 entries under tough topic. ×
| condensed(adjective, hard, solid, rigid) | |
| grim(adjective, hard, harsh, cruel) | |
| hard-bitten(adjective, strong, hard, careless) | |
| hard-hearted(adjective, hard, severe, harsh) | |
| hardy(adjective, strong) | |
| harsh(adjective, hard, cruel, grim) | |
| implacable(adjective, hard, harsh, cruel) | |
| insensate(noun, adjective, hard, severe) | |
| resistant(adjective, strong, hard, fit) | |
| severe(adjective, hard, cruel, unsympathetic) | |
| unmerciful(adjective, hard, harsh, cruel) | |
| unrepenting(adjective, hard, harsh, cruel) | |
| asleep(adjective, hard, severe, cruel) | |
| avaricious(adjective, hard, harsh, sophisticated) | |
| barbarous(adjective, hard, harsh, cold) | |
| benumbed(verb, adjective, hard, severe) | |
| bloody(adjective, hard, harsh, cruel) | |
| brutal(adjective, hard, severe, cold) | |
| cantankerous(adjective, hard, severe, cruel) | |
| churlish(adjective, hard, severe, cruel) |
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| APA | Smart Define. (2016). hardened thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/hardened/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "hardened thesaurus" https://smartdefine.org/hardened/thesaurus/synonyms (accessed September 29, 2026). |
| Harvard | Smart Define 2016, hardened thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/hardened/thesaurus/synonyms>. |
| MLA | Smart Define. "hardened thesaurus" 29 March 2016. Web. 29 September 2026. <https://smartdefine.org/hardened/thesaurus/synonyms> |